Commit 5fe71d27 authored Nov 29, 2020 by Marc Zyngier

irqchip/gic-v3-its: Tag ITS device as shared if allocating for a proxy device



The ITS already has some notion of "shared" devices. Let's map the
MSI_ALLOC_FLAGS_PROXY_DEVICE flag onto this internal property.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/20201129135208.680293-3-maz@kernel.org

parent 91f90daa

drivers/irqchip/irq-gic-v3-its.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -3487,6 +3487,9 @@ static int its_msi_prepare(struct irq_domain domain, struct device dev,
		goto out;
		}

		if (info->flags & MSI_ALLOC_FLAGS_PROXY_DEVICE)
		its_dev->shared = true;

		pr_debug("ITT %d entries, %d bits\n", nvec, ilog2(nvec));
		out:
		mutex_unlock(&its->dev_alloc_lock);

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